20156978511

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{317}}^1\times {\mathrm{743}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 30154123584

約数和(自身を除く): 9997145073

約数列:

[1, 3, 9, 37, 111, 257, 317, 333, 743, 771, 951, 2229, 2313, 2853, 6687, 9509, 11729, 27491, 28527, 35187, 81469, 82473, 85581, 105561, 190951, 235531, 244407, 247419, 572853, 706593, 733221, 1718559, 2119779, 3014353, 7065187, 8714647, 9043059, 21195561, 26143941, 27129177, 60531467, 63586683, 78431823, 181594401, 544783203, 2239664279, 6718992837, 20156978511]

約数ペア:

[(1, 20156978511), (3, 6718992837), (9, 2239664279), (37, 544783203), (111, 181594401), (257, 78431823), (317, 63586683), (333, 60531467), (743, 27129177), (771, 26143941), (951, 21195561), (2229, 9043059), (2313, 8714647), (2853, 7065187), (6687, 3014353), (9509, 2119779), (11729, 1718559), (27491, 733221), (28527, 706593), (35187, 572853), (81469, 247419), (82473, 244407), (85581, 235531), (105561, 190951)]